Gas-regulating valve.



H. E. WOLF.

GAS REGULATING VALVE.

4PPLI0AT10N IILEI) JUNE 7, 1913.

1,101,225. w Patented June 23, 1914.

I 222157202; HarryE Wolf,

HARRY n. woLr, 0E WEBSTER GROVES, MISSOURI.

To all whom it may concern Be it known that I, HARRY E. Wopr, a

citizen of the United States, residing at lVebster Groves, St. Louis county, M1ssouri',

have invented a certain newand useful Improvement in Gas-Regulating Valves, of which the following is a full, clear, and exact description, such as will enable others Skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, forming part of this specification, in which-- Figure 1 is a vertical sectional View of my improved gas regulating valve; Fig. '2 is a plan view with the top covers or castings removed so as to. show the interior mechanism.

This invention relates to a new and useful improvement in gas regulating valves, the

object being to reduce the pressure from the pipe pressure main to the point of consumption. Thepressure of the gas in the main may range from one quarter of a pound (iii) to seventy-five pounds (75#),

and at the point of consumption, to wit, thegas tip, the pressure employed is less than, It, therefore, re-- one half ounce (e 02.). quires a very sensitive, well regulated pressure reducing valve to accomplish this pressure reduction and insure a uniform low pressure at the point where the gas is consumed. Iaccomplish this by the construction shown in the accompanying drawings in which v 1 indicates a casting having a cylindrical diaphragm-chamber 2 and a trough-like extension 3 at one side thereof into the bottom of which latter leads a pipe 4 from the gas main. Above the opening which communicates with the gas main is a ported partition wall 5 having .a valve seat 6 on its upper side with which cooperates a disk valve -7, preferably composed ofleather, said disk valve being arranged in a recess in the lower end of a valve block 8, which valve block is cylindrical in form and has longitudinal grooves whereby it may be guided in its vertical movement.

'9 indicates a valve stem screwed into the valve block and being provided with a jam nut 10 whereby the valve may be adjusted on the stem and locked in its adjusted position.

11 indicates a lever pivotally connected to GAS-REGULATING VALVE.

thewive stem at one end and to adia phragm shoe 1?. at. itsother end. This lever s fulcru'med in ears 13' extending down from a plate 11, which bridges the troughhkc extension and is'supported at its ends by recesses in the upper side walls thereof.

' his plate is readily detachable from the base casting in, order to, permit the end of the lever 11 carrying the valve to be elevated for the purpose of renewing or adjusting said valve, and which operation can be j performed with u-t detaching the main :cover plate of the device. Another plate. 15,-

separate from the plate 14:, and readily detachable from the base casting 1 also bridges the trough-like extension adjacent the diaphragm chamber so as to provide a continuous seat for the marginal edges of the diaphragm.

16 indicates a removable cap piece secured to the base casting andbeing provided with nipple for the attachment of the pipe which. leads to. the points of consumption. This cap piece as shown in Fig. 1 islocated over the outer end of the trough-like extension and covers the removable plate 14, said cap piece extending over the outer edge of the plate 15.-

1"}: indicates the diaphragm, preferably of leather, on which is arranged a disk weight 18, the.- diaphragm being clamped between the weight and the shoe 12 by means of a screw 19. The edges of the diaphragm 17 form a gasket to provide a tightjoint between the edges of plate 14, cap piece 16, and the casting '1. i

20 indicates the cap plate which covers the diaphragm chamber and which is provided with a threaded boss for the accommodation of an adjusting screw 21 which cooperates with a compression spring 22 hearing upon the center of the weight 18 whereby the resistance of the diaphragm to the pressure of its under side may be regulated. It will be noted that the marginal edges of the diaphragm 17 rest upon. the continuous wall including the removable plate 15 and consequently a tight joint can be made entirely around the marginal edges of said diaphragm.

23 indicates a breathing opening comm'unicating between the chamber above the diaphragm and the exterior.

24 indicates apressure relief opening which extends through a down-turned pipe or nipple 25 whose lower end is submerged in mercury to form a mercury seal. .The lower end of the mercury cap is preferably formed by a removal cap 26, as shown.

A it is necessary to adjust or renew the valve 7, it is obvious that the removal of the cap plate 16 will enable the operator to obtain access to the valve and as the plate 14 carrying the brackets in which the lever is fulcrumed is removable, said plate can be lifted out. of its seat so as to raise the outer end of the lever and give access to the screw forming the pivotal connection between the outer end of the lever and the valve stem. Upon the removal of this screw, the valve may be removed for the purpose of repair or renewal. When the cap plate 16 is moved, it is obvious that the diaphragm cap plate is not disturbed and consequently the tight joint previously made around the edges of the diaphragm is preserved.

In operation, when the part are properly adjusted, the high pressure in the pipe is permitted to pass into the chamber under the diaphragm and as soon as said pressure reaches its maximum in the diaphragm chamber, the valve 7 will be forced on its seat, shutting 01f further inflow of pressure. As pressure in the diaphragm chamber is reduced, by consumption, moregas is admitted, the pressure thereof being regulated by adjusting the tension on the diaphragm through the medium of the compression spring 22. Should the valve 7 wear away or permit an inflow of gas which cannot be controlled by the diaphragm, the excess pressure in the diaphragm chamber will be relieved through the mercury seal.

What I claim is:

A pressure regulating valve comprising a base casting having a fiat upper surface and a trough-like extension, a removable plate bridging the trough-like extension, a diaphragm, a cap piece for securing said diaphragm in position, the edge of which cap piece overlies the edge of the base casting and the removable plate, a lever cooperating with said diaphragm, a second removable plate bridging the trough-like extension and located wholly beyond the first mentioned plate and the edge of the diaphragm cap iece which second plate is seatedin a recess in the base casting below the plane of said diaphragm cap piece, said removable plate having a depending projection providing a.

fulcrum for said lever, a valve carried by the end of said lever for controlling the inflow of gas and reducing its pressure, said valve cooperating with an inlet port opening through the bottom of said base casting, and a separately removable cap piece arranged on the base casting above the valve and extending over the second mentioned removable plate whereby said separately removable cap piece, when removed, gives access to said second mentioned removable plate permitting the fulcrum of the valve to be raised, thereby lifting said valve from its seat and permitting the removal of said valve.

Intestimony whereof I hereunto affix my signature in the presence of two witnesses, this etth day of June, 1913.

HARRY E. W OLF. Witnesses M. P. SMITH,- M. A. HANDEL. 

